Feeding Air Patents (Class 122/209.2)
  • Publication number: 20110132280
    Abstract: The carbon-free fire tube boiler is a boiler for heating water by combustion of hydrocarbon fuels with oxygen. The boiler includes a housing defining first and second heat transfer stages. At least one oxygen transport reactor is received within the first heat transfer stage. The oxygen transport reactor includes an outer wall and an inner cylindrical ion transport membrane. The membrane receives pressurized air and separates gaseous oxygen therefrom, transporting the oxygen into an annular region between the membrane and the outer wall. The gaseous hydrocarbon fuel is delivered into the annular region for combustion, producing gaseous carbon dioxide and water vapor. A water reservoir is defined within the first and second stages, with the at least one oxygen transport reactor and at least one transfer tube passing therethrough. The carbon dioxide and the water vapor are delivered through the at least one transfer tube for heating water contained therein.
    Type: Application
    Filed: February 18, 2010
    Publication date: June 9, 2011
    Inventors: Mohamed Abdel-Aziz Habib, Rached Ben-Mansour
  • Publication number: 20100083883
    Abstract: A boiler assembly including primary and secondary combustion chambers includes primary and secondary air controls for controlling combustion air to the chambers respectively. The air controls are operable between open positions to allow combustion in the chambers and a closed position in which the combustion air passages are fully sealed to fully interrupt combustion responsive to heating demands. The air controls are supported externally on the main housing of the boiler assembly so as to be modular and readily releasable from the main housing and the respective combustion air passages. The primary combustion chamber communicates with the secondary combustion chamber at a location partway in between introduction of the secondary combustion air and the exhaust passage.
    Type: Application
    Filed: October 6, 2008
    Publication date: April 8, 2010
    Inventors: Neil Hofer, Ray Wollmann
  • Patent number: 7111590
    Abstract: A water heater includes a housing, an air box, and two windproof hoods. Thus, the waste gas produced by the burner is drained outward smoothly and regularly even when the air current of the ambient environment is disposed at an abnormal and unstable state, so that the water heater has an enhanced air circulation, thereby facilitating operation of the water heater. In addition, the drain pipe is protected by each of the two windproof hoods to achieve a windproof and rainproof effect.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: September 26, 2006
    Inventors: Hsin-Ming Huang, Kuan-Chou Lin